Generalaire GA4231 Yellow Orifice. Replacement part for GeneralAire Elite Series humidifiers models 570, 900, 950, 1000. This water metering device installed on the end of the distribution tube that connects to the solenoid valve. This device insures that precisely the correct amount of water flows through the tube to the distribution trough.

Generalaire GA4231 Yellow Orifice. Replacement part for GeneralAire Elite Series humidifiers models 570, 900, 950, 1000. This water metering device installed on the end of the distribution tube that connects to the solenoid valve. This device insures that precisely the correct amount of water flows through the tube to the distribution trough.